https://www.moinsen.dev/en/blog What I'm building, what I'm learning, what went wrong. Building in public. en Wed, 20 May 2026 05:54:57 GMT https://www.moinsen.dev/en/blog/werkstatt-logbuch-2026-04 What's on the workbench right now: Variant-D website relaunch, Conductor graph mode, Agent-Flutter contract tester, and the first SME case on approach. Fri, 17 Apr 2026 00:00:00 GMT https://www.moinsen.dev/en/blog/werkstatt-logbuch-2026-04 Workshop Log BuildingInPublic Conductor Agent-Flutter https://www.moinsen.dev/en/blog/kmu-ai-analysis I built a free tool that analyzes your website and identifies concrete AI opportunities for your business. No strings attached. Mon, 13 Apr 2026 00:00:00 GMT https://www.moinsen.dev/en/blog/kmu-ai-analysis AI KMU Business BuildingInPublic Automation https://www.moinsen.dev/en/blog/agent-flutter-problem Last week, I was sitting in another tech meetup listening to someone pitch their "revolutionary AI agent" that could "transform any workflow." The demo? A chatbot that could write emails and summarize documents. Don't get me wrong, that's useful, but Mon, 16 Feb 2026 00:00:00 GMT https://www.moinsen.dev/en/blog/agent-flutter-problem BuildingInPublic Flutter + AI https://www.moinsen.dev/en/blog/classic-way-of-architecture A methodology for building software with AI coding agents — observed, tested, and documented during the construction of MCP AI Council. Thu, 12 Feb 2026 00:00:00 GMT https://www.moinsen.dev/en/blog/classic-way-of-architecture AI Architecture Software Engineering Methodology Coding Agents https://www.moinsen.dev/en/blog/flutter-error-handling-ki Why I built moinsen_runapp — and how a 'Copy All' button revolutionizes the debugging workflow with coding assistants. Tue, 10 Feb 2026 00:00:00 GMT https://www.moinsen.dev/en/blog/flutter-error-handling-ki Flutter Dart AI Developer Tools Open Source https://www.moinsen.dev/en/blog/saas-ist-tot The old SaaS with 47 menu items and US cloud dependency is over. What comes next? Solution-First and EU-First. Sun, 08 Feb 2026 00:00:00 GMT https://www.moinsen.dev/en/blog/saas-ist-tot SaaS EU-First GDPR Startup BuildingInPublic https://www.moinsen.dev/en/blog/anthropic-fast-mode Opus 4.6 was barely two weeks old — now comes Fast Mode. A look at a team that apparently has caffeine IVs as a standard benefit. Sat, 07 Feb 2026 00:00:00 GMT https://www.moinsen.dev/en/blog/anthropic-fast-mode AI Claude Anthropic Developer Tools Claude Code https://www.moinsen.dev/en/blog/conrad-5-stunden How we built a complete AI product with Claude Code, Cloudflare, and Stripe in one day — without ever having used Stripe before. Fri, 06 Feb 2026 00:00:00 GMT https://www.moinsen.dev/en/blog/conrad-5-stunden AI SaaS Claude Cloudflare Stripe BuildingInPublic https://www.moinsen.dev/en/blog/z-the-game A love letter to a 1996 game — and why I want to bring it back. Fri, 06 Feb 2026 00:00:00 GMT https://www.moinsen.dev/en/blog/z-the-game Gaming GameDev Godot Indie Retro https://www.moinsen.dev/en/blog/codeheart-idea Last week, I was debugging a particularly nasty piece of legacy code when it hit me. I spent twenty minutes trying to figure out what a function was supposed to do, not because the syntax was wrong, but because I couldn't understand the intent behind Thu, 05 Feb 2026 00:00:00 GMT https://www.moinsen.dev/en/blog/codeheart-idea BuildingInPublic Tools OpenSource https://www.moinsen.dev/en/blog/innovation-circle Over 200 repositories on GitHub. Most of them: ghosts. After 40 years in software, I've understood why ideas die — and what helps. A weekly experiment. Thu, 05 Feb 2026 00:00:00 GMT https://www.moinsen.dev/en/blog/innovation-circle Community Innovation BuildingInPublic Startup https://www.moinsen.dev/en/blog/intelligent-scanner From 'Oh, a bear!' to real market understanding — a story about pair programming with Claude and the art of slowing down AI Thu, 05 Feb 2026 00:00:00 GMT https://www.moinsen.dev/en/blog/intelligent-scanner AI Claude OpenClaw Stock Scanner Pair Programming https://www.moinsen.dev/en/blog/open-noisenet-laerm-monitoring-fuer-alle Noise monitoring for 30€ instead of 10,000€. Open source. Citizen science. Wed, 04 Feb 2026 17:01:22 GMT https://www.moinsen.dev/en/blog/open-noisenet-laerm-monitoring-fuer-alle BuildingInPublic IoT OpenSource CitizenScience https://www.moinsen.dev/en/blog/gitkeeper-ai-friedhofswaerter-fuer-repos 200+ repos. Most are dead. Time for an honest AI-powered inventory. Wed, 04 Feb 2026 17:00:41 GMT https://www.moinsen.dev/en/blog/gitkeeper-ai-friedhofswaerter-fuer-repos BuildingInPublic AI Rust OpenSource https://www.moinsen.dev/en/blog/agent-flutter-warum-ai-agents-fuer-flutter The best projects are born after 10 PM. Agent-Flutter is proof. Wed, 04 Feb 2026 16:59:30 GMT https://www.moinsen.dev/en/blog/agent-flutter-warum-ai-agents-fuer-flutter BuildingInPublic Flutter AI OpenSource https://www.moinsen.dev/en/blog/willkommen-im-blog At 60, I could retire. Instead, I keep building — my own products and AI tools. Why I'm not done yet after 40 years in software, and what this blog is about. Thu, 15 Jan 2026 00:00:00 GMT https://www.moinsen.dev/en/blog/willkommen-im-blog BuildingInPublic Personal Startup https://www.moinsen.dev/en/blog/welcome-to-the-blog Introducing the new blog section where I share insights on AI-first development, rapid prototyping, and building the future. Sun, 28 Dec 2025 00:00:00 GMT https://www.moinsen.dev/en/blog/welcome-to-the-blog Announcement AI Prototyping